Samsung GT-i8190 Galaxy S3 Mini 3G 900/1900/2100 factory Unlocked International Verison WHITE (Wireless Phone Accessory) The phone itself is great. I love that it is unlocked, came with the latest Jelly Beans (4.1.1) software and after a month of use got an update to 4.1.2. The phone is a perfect size, weight, and thickness. The battery life is pretty good.I'm on T-Mobile and it does not work with it well everywhere. I some areas of Manhattan I can get really strong HSPA+ (4G) signal, in others I can barely get EDGE.It is not the fault of the phone, that's why 5 stars, but something that people need to be aware of. The frequency that phone support is not really compatible with what T-Mobile provides. Although when we went skiing all of my friends with t-mobile phones did not have a signal and mine had 2 bars.Overall I really happy with this phone.